JRock Posted March 24, 2011 Report Share Posted March 24, 2011 (edited) I tried and it told me I wasn't allowed. I searched but no luck. I designed a PCB (based on a MFOS design) for a Gate buffer/comparator to boost MBCV gates to 12V for modular stuff. It has 8 gates and gives you 8 triggers too. I'd love to share. It's 1 sided with a few jumpers so you can etch it @ home :thumbsup: Edited March 29, 2011 by JRock Quote Link to comment Share on other sites More sharing options...
monokinetic Posted March 25, 2011 Report Share Posted March 25, 2011 I tried and it told me I wasn't allowed. I searched but no luck. I designed a PCB (based on a MFOS design) for a Gate buffer/comparator to boost MBCV gates to 12V for modular stuff. It has 8 gates and gives you 8 triggers too. I'd love to share. It's 1 sided with a few jumpers so you can etch it @ home :thumbsup: Ooooh, that sounds helpful :) Can I assume you could run it on a 15V PSU? You could always .zip the file. I'm pretty sure that should upload... David Quote Link to comment Share on other sites More sharing options...
JRock Posted March 27, 2011 Author Report Share Posted March 27, 2011 (edited) I didn't think of that :rolleyes: I'll see if I can figger that one out while I have little access to the intranetz. It runs off the same -/+ 12V as the MBCV. I think it needs to be -/+12V for the reference voltage for the comparator circuit. If you know enough about that kind of stuff you could probably fiddle with the resistor values in the voltage divider (for the reference) right above the first TL074. I don't quite know enough about how this all works yet. I don't see any reason you couldn't just slap a 7812/7912 on there and run both your MBCV and the Buffer/Comparator board off of that though. (So long as you have enough juice for everything) I just gave them (the MBCV and the Buffer/Comparator) their own shared supply so as not to bog down my -/+ 15V PSU Got it!: It's based on this schematic: MFOS Gate Buffer W/ Comparator outs The SCH and the BRD files are there. You'll notice there are like 16 gates/inverters on the 40106s that aren't used. That's only for ergonomics. If you can figger out what to do with them let us know. I would use insulated wire for the jumpers connecting -12V to the TL074s (on the right of them) Don't forget to hit ratsnest to run the groundplane :thumbsup: Good Luck!GateBuffer With Comparator 1 REF routed#3!!.zip Edited March 28, 2011 by JRock Quote Link to comment Share on other sites More sharing options...
rosch Posted March 27, 2011 Report Share Posted March 27, 2011 thank you very much! Quote Link to comment Share on other sites More sharing options...
JRock Posted March 29, 2011 Author Report Share Posted March 29, 2011 I'm changing the name of this thread :sorcerer: If you don't have eagle and need a PDF lemme know Quote Link to comment Share on other sites More sharing options...
Shuriken Posted March 30, 2011 Report Share Posted March 30, 2011 In the PDF you linked it says: It can be powered with +/-9 to +/-15 volts. Quote Link to comment Share on other sites More sharing options...
JRock Posted April 7, 2011 Author Report Share Posted April 7, 2011 Ha! I guess so :sorcerer: It may put out a bigger gate signal... Shouldn't cause a problem though. If you try it out post up here and let us know :thumbsup: Quote Link to comment Share on other sites More sharing options...
sidmonster Posted December 16, 2011 Report Share Posted December 16, 2011 I have built some aout lc and I'm going to use my mbsid with my modular. My modular runs on +-15v is it necessary to use buffers when I trigger my modular adsr generator or if I'm sending pulses to clock my sample and hold module? Quote Link to comment Share on other sites More sharing options...
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